Choosing an equatorial mount with a belt drive system can significantly enhance your astrophotography experience by offering smoother, quieter tracking and reduced gear backlash. The iEXOS-100-2 PMC-Eight stands out for its advanced multi-CPU responsiveness and user-friendly app, making it ideal for enthusiasts who prioritize automation. Meanwhile, the Celestron CGX offers a robust payload capacity with sophisticated computerized controls, perfect for serious astrophotographers handling larger telescopes. Both options present tradeoffs—complex setup and higher cost for the iEXOS-100-2, versus weight and potential complexity with the Celestron CGX—so understanding your specific needs helps narrow the best fit.
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Key Takeaways
- The iEXOS-100-2 excels in responsiveness and automation thanks to its multi-CPU system and app integration.
- The Celestron CGX provides a higher payload capacity and extensive object database, suitable for larger telescopes.
- Both mounts have complex setups that may require some technical familiarity, especially for beginners.
- The iEXOS-100-2 is more suited to those seeking modern connectivity and ease of alignment, while the Celestron CGX favors heavier setups with comprehensive control.
- Cost and weight are notable considerations—higher for the iEXOS-100-2 and the Celestron CGX respectively.
| iEXOS-100-2 PMC-Eight Equatorial Tracker System Tripod and Mount for Astrophotography with WiFi and Bluetooth |  | Best Overall for Automation and Connectivity | Processor: Eight CPUs (PMC-Eight system) | Connectivity: WiFi and Bluetooth | Mount Type: Equatorial tracker | VIEW ON AMAZON | See Our Full Breakdown |
| Celestron CGX Computerized German Equatorial Mount & Tripod, 55 lb Payload |  | Best for Heavy Payloads and Advanced Control | Mount Type: German Equatorial | Payload Capacity: 55 lb | Weight: 108 pounds | VIEW ON AMAZON | See Our Full Breakdown |
| equatorial mounts with belt drive system | Mount Type | Processor | Connectivity | Gears |
|---|---|---|---|---|
| iEXOS-100-2 PMC-Eight Equatori | Equatorial tracker | Eight CPUs (PMC-Eight system) | WiFi and Bluetooth | Clutched dual-axis worm gears |
| Celestron CGX Computerized Ger | German Equatorial | — | — | — |
More Details on Our Top Picks
iEXOS-100-2 PMC-Eight Equatorial Tracker System Tripod and Mount for Astrophotography with WiFi and Bluetooth
The iEXOS-100-2 PMC-Eight offers a standout combination of speed, reliability, and user-friendly control, thanks to its advanced eight-CPU processor. This system is designed for astrophotographers who want smooth, accurate tracking combined with modern connectivity options like WiFi and Bluetooth. The dual-axis worm gears ensure precise movement, but the complex setup and high cost might deter beginners or casual users. Compared with the Celestron CGX, it leans more toward automation and ease of use once configured, though it demands a learning curve for initial setup.
Pros:- Multi-CPU system enhances responsiveness and reliability
- User-friendly ExploreStars app simplifies alignment
- Precise dual-axis worm gears for smooth tracking
- Wireless connectivity for remote control
Cons:- Setup can be complex and time-consuming
- High price point limits accessibility for casual users
- Requires compatible devices for app operation
Best for: Astrophotographers seeking advanced automation and seamless app control
Not ideal for: Beginners or those uncomfortable with complex setup procedures
- Processor:Eight CPUs (PMC-Eight system)
- Connectivity:WiFi and Bluetooth
- Mount Type:Equatorial tracker
- Gears:Clutched dual-axis worm gears
- Control:ExploreStars app for Apple, Android, Windows
- Alignment:Polar alignment sight hole, altitude control
Our verdict“This mount makes the most sense for dedicated astrophotographers who want cutting-edge automation and connectivity, accepting the setup complexity and cost.”
Celestron CGX Computerized German Equatorial Mount & Tripod, 55 lb Payload
The Celestron CGX stands out for its robust 55-pound payload capacity, making it ideal for larger telescopes and astrophotography setups that require substantial stability. Its high-torque servo motors and integrated computerized control with a 40,000-object database provide precise tracking and easy target acquisition. The internal cabling allows for remote operation, which is a boon for serious observers. However, its weight of over 100 pounds makes it less portable, and the setup might be intimidating for newcomers. Compared to the iEXOS-100-2, it offers more raw power but less modern connectivity, focusing instead on durability and heavy-duty performance.
Pros:- High payload capacity supports large telescopes
- Extensive object database simplifies target finding
- Remote operation with internal cabling
- Durable stainless steel tripod legs
Cons:- Heavy and less portable
- Setup may require technical knowledge
- Price not specified but likely high
Best for: Astrophotographers with larger telescopes who need high payload capacity
Not ideal for: Travelers or beginners seeking lightweight, simple mounts
- Mount Type:German Equatorial
- Payload Capacity:55 lb
- Weight:108 pounds
- Dovetail Clamping:All-new dovetail clamping knobs
- Tracking:+20° extra tracking past meridian
- Control Software:NexStar+ controller, guided tours, custom object filters
Our verdict“This mount suits serious astrophotographers handling sizeable equipment, where payload capacity and control outweigh portability concerns.”
How We Picked
Our selection process focused on belt drive equatorial mounts that balance advanced features with usability. We prioritized models with reliable drive systems, good payload capacity, and features tailored to astrophotography, such as precise tracking and automation. The inclusion of connectivity options like WiFi or internal cabling was key for remote operation. We compared specs, user reviews, and the overall build quality to identify mounts that serve both serious amateurs and experienced astrophotographers, while considering the tradeoffs in complexity, cost, and portability.
| equatorial mounts with belt drive system | Mount Type |
|---|---|
| iEXOS-100-2 PMC-Eight Equatori | Equatorial tracker |
| Celestron CGX Computerized Ger | German Equatorial |
Factors to Consider When Choosing Equatorial Mounts With Belt Drive Systems
When selecting an equatorial mount with a belt drive system, it’s important to focus on a few key factors: drive smoothness, responsiveness, payload capacity, and automation features. Belt drives typically reduce gear backlash and noise, making them ideal for astrophotography. However, the complexity of the drive system and the control interface can vary greatly. Understanding your specific needs—whether it’s high precision, portability, or power—helps determine the right fit. Here’s what to consider before making a choice.
Drive System and Responsiveness
Look for mounts with high-quality belt drives that offer smooth, backlash-free operation. The responsiveness of the drive impacts tracking accuracy, especially during long exposure astrophotography. The iEXOS-100-2’s multi-CPU system exemplifies high responsiveness, while the Celestron CGX relies on robust servo motors for heavy-duty performance. Consider how critical real-time responsiveness is for your work—cheaper or simpler belt systems may cause jitter or drift over long sessions.
Payload Capacity and Stability
Assess the weight of your telescope and accessories. The Celestron CGX supports up to 55 pounds, making it suitable for sizable setups, whereas the iEXOS-100-2 may handle lighter loads but excels in precision for smaller systems. Choosing a mount that exceeds your total payload ensures stability, especially if you plan to upgrade equipment later.
Automation and Connectivity
If remote operation and automation are priorities, mounts like the iEXOS-100-2 with app control and WiFi are attractive. The Celestron CGX offers a powerful internal database and computerized controls but less modern connectivity options. Decide whether you prefer seamless smartphone integration or a more traditional control approach, based on your usage style.
Portability and Setup
Weight plays a big role here. The iEXOS-100-2 is relatively lighter but still complex to set up, suited for dedicated observing sites. The Celestron CGX is heavy and best for permanent or semi-permanent setups. If you travel frequently or need quick setup, consider lighter, simpler models, understanding that some tradeoff in payload capacity or features may occur.
Frequently Asked Questions
What advantages do belt drive systems offer in equatorial mounts?
Belt drive systems significantly reduce gear backlash and noise, resulting in smoother and quieter tracking. This enhances the quality of long exposure astrophotography by providing more precise and stable movement, which is critical when capturing faint celestial objects. They also tend to wear less over time compared to traditional gear systems, offering increased durability and consistent performance.
Are belt drive mounts more difficult to maintain than gear-based mounts?
In general, belt drive mounts require less maintenance because belts are less susceptible to lubrication issues and gear misalignments. However, they do need periodic inspection for belt tension and wear. Proper tensioning is vital to prevent slipping or loss of tracking accuracy, so some technical know-how is helpful for long-term upkeep.
Can I upgrade an existing mount to belt drive?
Upgrading an existing mount to a belt drive system depends on the model and compatibility. Some mounts have retrofit kits available, but in many cases, a full replacement of the drive system is necessary. It’s worth consulting the manufacturer or a professional technician to determine if an upgrade is feasible and cost-effective for your setup.
What features should I prioritize if I want to do astrophotography?
For astrophotography, prioritize mounts with high-precision belt drives, low backlash, and excellent tracking stability. Automation features like app control, polar alignment aids, and remote operation capabilities can make long exposures easier. Payload capacity is also important if you’re using larger telescopes, and quiet operation helps minimize vibrations during exposures.
Is weight an important factor when choosing an equatorial mount?
Yes, weight directly affects portability and ease of setup. Heavier mounts like the Celestron CGX are stable and suitable for permanent installations but are less portable. Lighter mounts such as the iEXOS-100-2 are easier to transport but may have limitations in payload capacity or robustness. Balance your need for mobility with the stability and power your astrophotography requires.
Conclusion
For dedicated astrophotographers who prioritize automation, responsiveness, and modern connectivity, the iEXOS-100-2 PMC-Eight offers a compelling package, despite its complexity and higher cost. Conversely, those with larger telescopes or heavier payloads should consider the Celestron CGX, which provides robust power and stability at the expense of portability. Beginners or casual users may find both options overwhelming; in such cases, simpler mounts with basic belt drive features could be more suitable. Ultimately, matching your specific astrophotography goals and equipment weight will guide the best choice.
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